[castor-user] Xml validation of the mapping file, do we need the dtd?

[Paul Bertrand]

Hello   We are currently using the great Castor API in our project and unfortunately it happens that, sometimes our application is running on firewalled servers blocking most of the traffic. The problem we encountered is that by defining the dtd location in the begining of each mapping file as this   <!DOCTYPE mapping PUBLIC "-//EXOLAB/Castor Object Mapping DTD Version 1.0//EN" "http://www.castor.org/mapping.dtd">   it happens that we can not reach the website creating. Then it creates naturally an exception telling us that the validating process can t be done.   We can not declare the DTD as SYSTEM instead of PUBLIC because we have too many mapping files located at different places ( plus mapping in .jar files). I tried to remove the DTD definition and it works. It appeared that the validation of the file does occur even without the dtd declaration (internal validating????). I added some misspelled attributes and elements in the mapping and the same exception has been thrown.   The purpose of this message is that I would like to be absolutely sure before changing 50 mappings that removing the DTD definition is safe.   Thanks